Athyma opalina, the Himalayan sergeant, is a species of large, tailess nymphalid butterfly found in tropical and subtropical evergreen forest regions in Asia (India, Nepal, Bangladesh and Bhutan), usually at a elevation of 1200 meters to 3000 meters. A. opalina has a wingspan of 57 millimeters to 72 millimeters. Athyma opalina primary color is black with white as an associated color. Other colors on Athyma opalina include red, brown and orange.

Adults of this species feed on nectar, sap and sometimes decaying organic matter while larvae feed on some trees and grasses. They live for 12 months.

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